Question

If you were to walk briefly in space without a spacesuit while far
from the Sun (as an astronaut does in the movie 2001), you would
feel the cold of space -- while you radiated energy, you would
absorb almost none from your environment. Assume that your
emmisivity is 0.90, the surface area of your body is 2.2 m2, and
your skin temperature is 303 K.
(a) At what rate would you lose energy?
1 W